Collaborative Research: Deformation of Layer Silicates

这是一个合作项目， 片状硅酸盐的变形，主要是普通云母， 三轴变形实验，旨在测量 （001）位错所需的临界切应力 在700 ℃的温度和400 MPa的压力下滑动， 显微结构（光学和电子显微镜）和 微观化学（电子探针和红外吸收）研究， 确定主滑动方向及其相关性 晶体化学和晶体结构的基础上。 的确定 云母的应力-应变关系将直接应用于 产量envlopes构建大陆岩石圈， 应变局部化机制沿着韧性剪切带， Brittel断层和含云母变质构造岩。 在 此外，这项研究应导致更深入的了解， 位错滑移的影响，因为它是由显着的 晶体化学和结构的变化， 矿产集团

This is a collaborative project to investigate the deformation of sheet silicates, principally the common micas, by means of triaxial deformation experiments designed to measure the critically resolved shear stresses required for (001) dislocation glide at temperatures to 700oC and pressures to 400 MPa, combined with microstructural (optical and electron microscopy) and micorchemical (electron microprobe and IR absorption) studies to determine the principal slip directions and their dependencies upon crystal chemistry and struecture. The determination of the stress-strain relations of micas will have direct applications to yield envlopes constructed the continental lithosphere, to the mechanisms of strain localization along ductile shear zones and brittel faults, and to mica-bearing metamorphic tectonites. In addition, this study should lead to a deeper understanding of dislocation glide in minearls, as it is influenced by signicicant changes in crystal chemistry and structure within a single mineral group.